225188 has 12 divisors (see below), whose sum is σ = 414960. Its totient is φ = 106632.

The previous prime is 225167. The next prime is 225217. The reversal of 225188 is 881522.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1406 + ... + 1557.

It is an arithmetic number, because the mean of its divisors is an integer number (34580).

2²²⁵¹⁸⁸ is an apocalyptic number.

It is an amenable number.

225188 is a deficient number, since it is larger than the sum of its proper divisors (189772).

225188 is a wasteful number, since it uses less digits than its factorization.

225188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2986 (or 2984 counting only the distinct ones).

The product of its digits is 1280, while the sum is 26.

The square root of 225188 is about 474.5397770472. The cubic root of 225188 is about 60.8389552987.

The spelling of 225188 in words is "two hundred twenty-five thousand, one hundred eighty-eight".